Maintenance; Setting Pump (Brew) Pressure - Quick MILL LUCCA M58 Owner's Manual

Maintenance

Backflushing is a vital maintenance procedure you must follow to help keep your machine
running flawlessly for years to come. There are two types of backflushing; one with plain
water, and the other with espresso machine cleaner.
Plain water backflushing
inclined, feel free to backflush with plain water as often as you like. It won't harm the
machine and keeps the shower screen clean.
To backflush, you use the portafilter's backflush disc. To remove your single or double
portafilter basket, use the blank portafilter insert. Turn it upside down and use its edge to pry
the basket out of one of your portafilters. (If you always make double espressos, you may
choose to keep the blank portafilter insert in your other portafilter so you always have one
ready.) Next, place the blank insert into the portafilter and slap it hard with the palm of your
hand to secure it into the portafilter.
To perform a plain water backflush, place the portafilter into the group head. Then raise the
brew lever all the way up for 15 seconds, and then lower it. Water will forcefully discharge
out of the bottom of the group into the drip tray; this is normal. Repeat three to five times.
Backflushing with espresso machine cleaner
minor differences. The first difference is backflushing with espresso machine cleaner only
needs to be done approximately once a month or every 35-50 espressos. I don't recommend
backflushing with cleaner more often than once every three weeks since overuse will remove
oils that lubricate the brew lever and valves.
To begin, place 1/4 of a teaspoon of espresso machine cleaner into the backflush disc in the
portafilter and then lock the portafilter into the grouphead. Now follow the same procedure
as above until the cleaner is dissolved and the water runs clear (about 5-10 flushes).
Remove the portafilter from the group and rinse thoroughly. Then take a damp cloth and
wipe the underside of the group. After you have finished this procedure, I recommend you
pull a shot of espresso and dispose of it to cure the group. You're finished and ready for
another month of espresso.

Setting Pump (Brew) Pressure

• Remove the grommet on the right side of the machine to
expose the pump adjustment screw shown on the
picture to the right.
• Plug the machine back into the outlet and then turn the
power switch on
• Loosen the lock nut labeled "A" with an adjustable wrench.
(This can be done with your fingers)
Owner's Manual
LUCCA M58
should be done at least once a week, however if you are so
is the same procedure as above with a few
Page 13